Coupling for electric fixtures.



Patented Feb. 13, 1912.

J. T. BARTLEY.

UOUPLING FOR ELECTRIC FXTURES.

APYLIGATION mmm JUNE 15. 1910.

WTNESSE S.'

JOHN T. BARTLEY, 0F JERSEY CITY, NEW JERSEY.

ooUPLING Fon ELECTRIC FIXTURES. i,-

Application led June 15, 1910. Serial No. 566,992. 'n' l To all 'whom'it 'may concern.: Be it known 'that I, JOHN T. BAii'rLEY, a citizen Aofthe United States, and a resident of Jersey City, in the county ofHudson and State of New Jersey, have invented a new and Im roved Couling for Electric Fixtures, otpwhich the fiillowing is a full. clear;'and exact description.- A

Among the principal objects which the present invention has in view are:to provide a hanging coupling device forelectric fixtures which will, inaccordance with the city ordinances, permit the lead wires to passoutside-of the hanging device between the conduitand fixture; to providea hanger for electric fixtures which will accommodate the iingularity'of disposition of the structure to.

which it is connected, and thereby permit the fixture to be centered bvmoving the structural device to which sai xture is attached; and toprovide a device of the characterv specified which is `simple,efficient, economicall and durable.

One embodiment of the present invention is disclosed in the structureillustrated in the accompanying drawings, in which like cha ractersl ofreference denote correspondiiig parts in all the views, and in which-Figure. 1 is a fragmentary view in side elevation of an electrolier andhan er therefor, showing the junction formed y a coupling constructedand arranged in accordance with the present invention; Fig. 2 is avertical cross section of a con ling constructed and arranged in. accorance with the present invention;and Fig. 3 is a cross section taken onthe line 3 3 in Fig. 2.

In many cities, and particularly in the city of New York, the fireordinances controlling the installation of wiring systems in buildingswhere electrolieis are installed, l

secured on to the ring 6, clamping the ball provide that the lead wires.shall be exposed between the electrolier and (la conduits 1n which thesaid wires are run. lt is to lcon- Specication of Letters Patent.

forni with the law, and at the same time 1 facilitate the running of thewires, that I f The openings 5, 5 extend between the neck of the collar4 and the ring G thereof. The collar 4 is tapped to forni the internalscrew threads shown in Fig. 2 of the dymvnigs, wherewith the collar isattached *o ani' suitable forni of insulating joint g threaded downwardthrough the electrolier,

The ring (S is provided with internal sei-ew {jme-l5 io rei-"ive inthreaded engagement Clamp ring 7, the lower extension Swhere-Patentea-Eeb..13,1oi2.

of is cent-rally extended to @support fora ball joint 9. A 'f "l Theball joint 9 is provided,withy a'peiitral opening which is tap edfwithfa'screw,thread for mounting upont e niainf 'ipjf'lOofftheelectrolier. The ball 9 i's' flattened 'aft tlie upper end to near thepediiiii line the said ball. The flattened 'portioiiiefxteii'ds b lowthe openings 5 so thiitf'tlies'aidfpein are not crowded or restricted'the Il, W'hen installing a in `ifvliicli is employed the coupliii'lriiiilg'j,i'slio'vvn4 yand described, the operation ls's' f'cilloiiisz''The main pipe 10 of the electrolier has screwed thereon a ball 9. Thegas iipe, or other anchoring device B is provi ed with an insulatingjoint A of any approved or known type. The pipe B is extended through ajunction box C, extending through the upper aiid`central oliieningrthereof. box is placed with reference to the centralizing of theelectrolier. the pi )e B being twisted or beiitlaterully for thispurpose. From a lateral opening in the junction box is extended thecoiidiiitor insulating portion of the tube l). T he box C, having beensecured in position, the collar 4 is secured on the insulating joint A,provision being made in the terminal of the said jointto receive thesaid collar; Prior to securing the ball 9 upon the main pipe 10 the ring7 is slipped over the said pipe, so that after the ball is secured inposition the ring 7 may be slipped upward in engaging relation with thesaid ball. The interior of the ring and the extension of the ring 7, arecast to forni a socket for the ball 9. The fixture is now raised untilthe ball 9 is seated within thc ring G. lVith the main pipe 10 hangingplumb, the ring 7 is adjuster to engage the threads in the ring G whenthe said ring Tis 9 iii holding position. The joint formed by the ringsC and 7 with the ball f) permits the plumbing of the electrolier inposition with relation to the angular disposition of the pipe B. lVlienthe pipe 10 is so pluinbed.

the ring 7 is closed so that the ball J is rigidly jammed between the.rings (i and 7. lVlien now the wiringl is i'iin with' fixturestliusliung` the wires may be threaded in the lronduit and be. broughtout of the conduit at. the junction box C. The wires ai'e then or ifrecon-ed. the wiring oi' the clcctrolicr if;

The junction and the conduit l). The wires, in passing out of or intothe pipe 10 of the electrolier, extend through the openings By means ofthis construction and arrangement the ordinances above referred to areconformed Having thus described my invention1 what 1V claim as new anddesire to secure by Letters Patent s:- V

'1. A coupling for electric fixtures comprising a collar having aninternally thread- `ed neck portion and an externall)v threaded rimarportion, said portions being connected hy a spider construction, theinner side of said ring portion being further shaned to forni a halfsocket for the ball -jointg a clainpinfr collar haring a neck portionscrew threadedD to engage the threads on said ring portion.l said collarbeing shaped to forni a segmental socket for a ball; and a ball ha ing atapered perforation therethrough to receive an electrolier pipe.

Q. A coupling' for electric fixtures coinprising a collar having aninternally threaded neck portion and an externally threaded ringportion` said portions being;r connected by a spider construction, theinner side ot said ring portion being further shaped to form a halfsocket for the ball joint; a clamping collar having a neck portion:screw threaded to engage the threads on said ring portion, said collarbeing shaped to form a segmental socket for a ball; a ball havingr atapered perforation therethrough to receive an electrolier pipe` and a'swinging support for said collar adapted to be disposed at variousangles.

In testimony whereof I have signed this specification in the pr senceoftwo subscribing witnesses. l,

J OH X 'l`. BA ltTLlY. llitnesses:

E. F. Mvnnock. Join- P. Davis.

